mp4box -add video01.mp4 -cat video02.mp4 -cat video03.mp4 -cat video04.mp4 -cat video05.mp4 -cat video06.mp4 -cat video07.mp4 -cat video08.mp4 -cat video09.mp4 -cat video10.mp4 -cat video11.mp4 -cat video12.mp4 -cat video13.mp4 video.mp4